Spinning and twisting machine



Nov. 11, 1930. J. J. KEYSER 1,781,584

SPINNING AND TWISTING MACHINE Filed Aug. 12, 1929 Patented Nov. 11, 1930 UNITED STATES r JOHANN JACOB KEYSER, or AARAU, swrrzEnr'i Nn" I x SPINNING AND rwrsrr o MACHINE Application filed August 12, 192a, Serial No. 335,335, an in'Germany and SwitzerlztndNoiremberb, 1928.

In my copending application Serial No. 250,259, filed January 28, 1928, I have disclosed certain improvements of spinning and twisting machines in which a spindle carry- 5 ing beam is. vertically reciprocated with relation to a stationary ring rail at a constant stroke and given additional movement at the stroke ends.

by the spindle beam is rotated during its vertical reciprocations by a worm gear,

- I shaft of the vertically reciprocating beam is I 25 operated by an endless sprocket chain like wise imparting a change in speed of rotation to the said actuating shaft when the beam is reciprocated.

' In the drawing illustrating a preferred embodiment 10 designates the main shield or Jframe of a spinning or twisting machine on which a main sprocket wheel ll is rotatably supported upon a shaft 12 and actuated by a sprocket chain 15 passing around the driving sprocket 14 of a main drlving shaft 13, a tensioning sprocket 18 and upper andlower guiding sprockets 19. The sprocket chain is besides passed through a caslng 16 integral with the spindle beam 8 and within wh ch two guiding sprockets 17 and a sprocket 23 are located, sprocket 23 belng mountedon the spindle actuating I shaft 7 extending through the beam 8. The sprockets 19 are located vertically above and below the sprockets 17 respectively, as shown, so that the sprocket chain will be in engagement with a substantial portion of the peripheries of sprockets l7 and 23. The machine is further provided with a stationary ring rail and with means for efiecting the verticalrecipro- In the embodiment shown in" the said application the common operat ng 10 shaft of the worm-actuated spindles carrled :moveinents ofy-thebearirztt the ends-pf its verticalqreciprocations. All of these contrivances'have' not been illustrated in ;the drawing as they maybe constructed inany known or suitable way and are assuch not the objects of my-present invention. a

From the foregoing explanationitbecomes apparent that, since-the; sprockets 19 do not partake in the vertical freciproc'ations of beam 8,. also in this embodiment a supplemen tary rotationis' imparted fto the spindle actuating shaft 7 tending to increaseor decreasethe rotationalspeed'impartedto it by the revolutionaryfmovement jofthe sprocket chain around its vertically sprocket. It will be noted that the spindle beain8 is vertically reciprocated while the driving chain 15 is running. Thisrecipro cation of the beam,depending on whether such movement is going on in upward or in downward direction, must necessarily result in an additional rotation of the main shaft 7 so as to increaseor reduce the speed of rota? tion of such shaft. The reciprocation of the beam while chain 15 is running thus provides an additional or supplementary rotation to the shaft 7 whereby certain influences on'the spinning ortwisting operation is obtained.

I claim as my invention:

1. In a spinning'and twisting machine a stationary frame, a spindleactuating shaft, a spindle carrying beam supporting said spindleactuating shaft and adapted to ver ,tically reciprocate on the said stationary frame, an'endless sprocket chain for operating the said actuating shaft, guiding sprockets carried by the said beam in fixed spaced relation withthe spindle actuating shaftand adapted to reciprocate with the said beam and guiding sprockets on the said stationary frame in fixed spaced. relation and not partaking in the beam reciprocation.

2. In a spinning and twisting machine a stationary frame, a spindle actuatingshaft, a spindle carrying beam supporting said spindle actuating shaft and adapted to vertically reciprocate on the said stationary,

stationary PA ENT 2- a meme;

frame, an endless sprocket chain for operating the said actuating shaft, guiding sprockets carried by the said beam in fixed spaced relation with the spindle actuating shaft and adapted to reciprocate with the said beam, guiding sprockets and a driving sprocket on the said frame in ifixed spaced relation andnot partaking in-the beam reciprocation and'a 'tensioning sprocket for securing the engagementof the said sprocket chain with the said reciprocating and nonreciprocating sprockets. I it 3.111 aspinning and twistingmachine a ;stati o1 1aryframe, a spindle actuating shaft,

a spindle carrying beam supporting said spindle actuating'shaft and adapted to be vertically reciprocated 011 said stationary frame,and an endless sprocket chain for, operatrng SitlCl actuating shaft, guiding and tdriving sprockets,i-said sprocket chain being ']passed around said iguidlng and driving sprockets which arejfixed relative to the reciprocation of said'beam and said sprocket fchain having aportion running in directionsubstantia -lly parallel with the direction of the :beamreoiprocation andbeing in-en- 'gagement with the spindle actuating shaft through the intermediary of said substan- =tia1ly parallel portion.

In testimony whereof Iaifix my signature.

J OHANN JACOB KEYSEB. 

